Question about 2003 Chevrolet Trailblazer Ext
If you plan on having the vehicle for a long time and do repairs yourself it is always the best option to pick up the service manual. It has the steps for any repair on the entire vehicle. It is what the dealer mechanics use. Because your vehicle is newer its still about 130$ on ebay for your manual as you can see here. Now I have a few questions about the problem so I can better assist you do any lights flash at all on the dash? Also have you checked the starter yourself with a multimeter? Check to see if ur getting 12v at solenoid when cranking. Make sure you have constant 12v at starter as well. It sounds like possibly the ignition switch. There are a lot of Technical service bulletins on these vehicles. You can view those here.
Also there is a bulletin with this reference number #02-08-64-017
faulty ignition switches. That cause your exact problem, also causing it to stay in park. Only troubleshooting the problem with multimeter will tell you for sure but it looks like these are pretty good places to start. If you need further assistance or have any other questions please let me know.
Posted on Jul 26, 2009
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Posted on Jan 02, 2017
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